Johnson City climate

Johnson City Weather in September

NOAA 1991-2020 normals for Johnson City 2N, 2.6 km from Johnson City

Average highs run from 94°F on September 1 to 87°F on September 30, and lows from 68°F to 60°F. Normal precipitation for the month is 3.36 in over about 7 wet days.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Johnson City, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
90°F
Average low
64°F
Precipitation
3.36 in
Record high
110°FSep 6, 2000
Record low
37°FSep 22, 1983
Chance of a freeze
0%
Days of 90°F or more
17.0
Daylight
12 h 45 min to 11 h 53 min
Cloud cover
45%
Humidity
64%
Dew point
62°F
Wind
8.5 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 194°F68°F105°F 200045°F 200721%0%
Sep 294°F68°F105°F 200057°F 197421%0%
Sep 393°F68°F107°F 200054°F 197421%0%
Sep 493°F68°F107°F 200050°F 197421%0%
Sep 593°F67°F109°F 200050°F 197421%0%
Sep 693°F67°F110°F 200047°F 201121%0%
Sep 792°F67°F105°F 202347°F 201121%0%
Sep 892°F67°F108°F 202348°F 201121%0%
Sep 992°F66°F104°F 202349°F 201121%0%
Sep 1092°F66°F101°F 199748°F 196822%0%
Sep 1191°F66°F100°F 201349°F 196822%0%
Sep 1291°F66°F102°F 200053°F 196822%0%
Sep 1391°F65°F101°F 201154°F 196922%0%
Sep 1491°F65°F102°F 201155°F 200622%0%
Sep 1590°F65°F100°F 201148°F 199922%0%
Sep 1690°F64°F99°F 199749°F 198922%0%
Sep 1790°F64°F99°F 199749°F 198422%0%
Sep 1890°F64°F100°F 201944°F 198122%0%
Sep 1989°F63°F97°F 197540°F 198121%0%
Sep 2089°F63°F99°F 202349°F 197121%0%
Sep 2189°F63°F99°F 202349°F 200621%0%
Sep 2289°F62°F99°F 202237°F 198321%0%
Sep 2388°F62°F100°F 202338°F 198321%0%
Sep 2488°F62°F105°F 202345°F 198321%0%
Sep 2588°F61°F98°F 200538°F 198921%0%
Sep 2688°F61°F105°F 200540°F 200021%0%
Sep 2787°F61°F105°F 200541°F 200021%0%
Sep 2887°F60°F101°F 200541°F 200021%0%
Sep 2987°F60°F105°F 200541°F 199621%0%
Sep 3087°F60°F98°F 201140°F 199221%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Johnson City, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 7:11 AM, sunset 7:56 PM
September 30
sunrise 7:27 AM, sunset 7:20 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00414605 (Johnson City 2N), public domain. Records: NOAA GHCN-Daily, station USC00414605, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.